Attachment for wrenches



UNITED STATES PATENT OEEIcE.

JAMES WILKES, OF SOUTH ST. PAUL, MINNESOTA.

ATTACHMENT FOR WRENCH ES.

SPECIFICATION forming part of Letters Patent No. 439,918, dated November 4, 1890. Application iiled September 2, 1890. Serial No. 363,785. (No model.)

To all whom it may concern..-

Be itknown thatI, J AMES WILKEs, of South St. Paul, in the county of Dakota and State of Minnesota, have inventedV certain new and useful Improvements in Attachments for Wrenches; and I do hereby declare that the following is a full, clear, and eXact description of the invention, which will enable others skilled in the art to which it pertains to make and usc the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The main object of my invention is to adapt an ordinary monkey-wrench for use as a vise. It consists, essentially, of a holder adapted to receive the wrench and to be attached to a table or bench, and of a pin for turning the wrench-screw, the head of which is provided with a hole to receive the piu.

In the accompanying drawings like letters designate the same parts in both figures.

Figure 1 is a perspective view of a wrench provided with my attachments and arranged in connection therewith for a vise; and Fig. 2 is an end elevation of the wrench and of the holder, showing the method of securing the wrench therein.

A is the fixed jaw, and B the movable jaw, of an ordinary monkey-wrench. C is the screw by which the movable jaw is operated. The head D of this screw is perforated transversely to the axis of the screw to receive a pin E, which serves as a lever for operating the movable jaw B of the wrench when the latter is used as a vise.

F is a holder, by which the wrench is secured in the proper position for avise to a table, bench, or other suitable support. It is formed on the upper side with ears ff, between which the Xed jaw A of the wrench is placed and secured by a thumb-screw G, inserted in a threaded perforation in one of said ears. The other ear f is preferably provided on the inside with a stud f', which is inserted in a socket formed for its reception on the side of the fixed jaw A, for the purpose of more firmly securing the wrench in said holder. The holder F is formed on the lower side with an ear f2, which is provided with a thumb-screw H, and constitutes, with the cross-piece connecting the ears ff, a clamp for attaching the holder to a table, bench, or other support, as shown in Fig. l.

By simply forming the transverse sockets or perforation in the head D of the wrenchscrew and a socket in the side of the xed headA, the wrench is adapted for use with my attachments, consisting of the pin or handle E and the holder F, and with these slight changes and simple attachments an ordinary wrench is convertible into a small vise, as serviceable and efficient as those specially made for the purpose.

I claiml. The combination, with a wrench having a ixed and movable jaw and a screw for operating the movable jaw, having a transversely-perforated head, of a holder by which the wrench is attached to a bench or other support, and a removable pin adapted to turn said screw, substantially as and for the purposes set forth.

2. The combination, with a monkey-wrench, the adj Listing-screw of which has a transverse hole or socket, of a holder for attaching the wrench to a bench or other support, and a pin adapted to be insert-ed in the hole or socket in said screw, substantially as and for the purposes set forth.

3. The combination, with a wrench having a movable jaw, a screw for operating said jaw, having a transverse aperture for the reception of a pin or handle, of a holder formed with two ears to receive the fixed jaw of the I wrench between them, and a clamp for attaching said holder to a bench or other suitable support, one of said ears being provided with a screw for securing the wrench in said holder, substantially as and for the purposes set forth In testimony that I claim the foregoing as my own I afliX my signature in presence of two witnesses.

JAMES WILKES. Witnesses: JOSEPH SoHEoLL,

FEED H. HALL. 

